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Compare Linzess vs. Viberzi

Head-to-head comparisons of medication uses, side effects, warnings, and more.

Key takeaways

Linzess (linaclotide) and Viberzi (eluxadoline) are both prescription medications used to treat different types of irritable bowel syndrome (IBS). Linzess is a guanylate cyclase-C (GC-C) agonist that helps with IBS with constipation (IBS-C) by increasing fluid in the intestines to ease bowel movements. On the other hand, Viberzi is an antidiarrheal that targets opioid receptors in the gut to treat IBS with diarrhea (IBS-D). Linzess is taken once daily on an empty stomach, while Viberzi is taken twice daily with food. Linzess can cause diarrhea as a common side effect, whereas Viberzi can lead to constipation and has a risk of pancreatitis, especially in people without a gallbladder or those who drink heavily. Additionally, both medications are only available as brand medications, while Viberzi is a controlled substance due to its potential for abuse.

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